Staff Infrastructure Engineer, Cluster Infrastructure

About the role

Anthropic’s Infrastructure organization builds the foundation for reliable, interpretable and steerable AI systems. The Cluster Infrastructure team owns the full lifecycle of compute clusters across cloud providers and Anthropic’s own datacenters, delivering high‑bandwidth, secure‑by‑default clusters that can automatically recover from failures. As a Staff Infrastructure Engineer you will set the technical direction for bringing compute online at a time of rapid scale‑up.

Key responsibilities

• Own the technical strategy and roadmap for agent‑driven cluster lifecycle management – provisioning, updates and decommissioning.
• Partner across teams to ensure new compute capacity is ingested on time.
• Align with partner teams on physical build‑out and leverage cloud solutions to deliver high‑bandwidth inter‑cluster connectivity.
• Collaborate with security owners to ensure clusters are provisioned secure‑by‑default.
• Define and drive strategy on cluster scalability, homogeneity and fault tolerance.
• Work closely with cloud providers and internal research, inference and product teams to shape long‑term compute, data, and infrastructure strategy.
• Establish and evolve operational‑excellence practices: incident response, postmortem culture and on‑call health.
• Support the growth of engineers around you through technical mentorship and coaching.

Required profile

• Deep expertise in distributed systems, reliability, and cloud platforms (e.g., Kubernetes, IaC, AWS/GCP/Azure).
• Strong proficiency in at least one systems language (e.g., Rust, Go, or Python) and IaC proficiency with Terraform.
• Track record of leading complex, multi‑quarter technical initiatives spanning multiple teams or systems.
• Ability to build alignment across senior stakeholders and communicate effectively at all levels.

What we offer

• Competitive annual salary of £325,000 – £485,000 GBP.
• Equity donation matching, generous vacation and parental leave.
• Flexible working hours and hybrid office policy (minimum 25% onsite).
• Access to a collaborative office space in London.
• Support for visa sponsorship where possible.